Punching circuit



Dc; 5, 1950 E. ROSE 2,532,331

1 PUNCHING CIRCUIT Filed Jan. 5, 194e J P-l "a ce 4 a IFE' www ...TFL-5 U( 25 HOLES o To 9 cLc CE-G "-1: (ZG

A--xvunnsmme MAGNETS |51 |4 FSJ IE m 51 V wumom ERNEST ROSE Patented Dec. 5, 1950 UNITED STATES PATENT OFFICE PUNCHING CIRGUIT. Ernest `Rose,"U11ted States Navyr Applicaffin .iallail-y 5, 1946, VSli'ilal NG. 639,394

(Granted under 'the act of March 3, 18843, as amended April 30, 1928; 370 O. G. 757) '5 Claims.

This invention relates to a reproducing means comprising punching and a punching circuit used in conjunction with electrical accounting machinery.

In using accounting machinery of the card punch type it is sometimes necessary to punch out a-ll holes in a column on a card except those indicating the desired dat-a. Thus a card record is needed in a form which is the exact opposite of an ordinary card bearing the punched data. This is desirable in certain types of `statistical work.

One object of this invention Vis to provide an improved punching control circuit.

A further object is to provide a reproducing device which in reproducing punched data and blank spaces will reverse 'their 'use within a column.

Other objects and advantages will be apparent from the following specication in conjunction with the appended claims.

Machines for punching data on cards are well known. One example of such a machine is disclosed in U. S. Patent No, 2,053,067 granted September 1, `1936, which is based on Patent 2,032,805, granted March 3,V 1936, now Reissue 21,133, granted June 27, 1939. The device of this invention constitutes an improvement on such a m'achine, and will reverse the operation of the punching mechanism so that all ordinarily blank positions from 0 to 9 in each column will be punched out while the usually punched positions that are made from an original card will be left blank. The cards employed in the proposed device are familiar to the business machine art, and are similar to those shown in Fig. 2 of Patent 2,053,067. This circuit is used in conjunction with the perforating device commonly known as a` reproducing punch as described in the above patents.

The invention may be more easily understood by the following description in connection with the accompanying drawings in which the single gure is a schematic diagram of the improved punch circuit.

Referring now to the drawing, the standard reading circuit, as set forth in the above patent, is shown at 2, 3, 4, 5, 6, 7, 8, 9, and'l. While the present invention employs additional relays and `contacts than those used by Patent 2,053,067 its operation is similar as can be clearly seen by a comparison of the present drawing with Fig. 4B of the above patent. See Fig. 4B, wherein brushes 9, 9 etc. of the instant case are seen as brushes I5, I5 etc.; contact roll 8 of the instant .case

2 is seen at Contact roll 262 and contacts I, Ill of the instant case are seen at contacts J2, JZA, JZB, JZC of Fig. 4B of 2,053,067. The punching magnets of the instant case are seen at magnets PM of 2,053,067. Also, in the present `case,l`the contacts P-I are for energizing the reading cir: cuit when a card `passes therethrough, while 'CB compares with relay C15, Ri with R1, and CLC with RCLZ in the reference patent. 'I'h'e purpose of c'a-m 25 will be more fully described hereinafter. The elements 1, 3, the pattern card, 9, 'Ill 'and the punch magnets are the same as those `shown in 2,053,067. The standard punch magnet circuit is shown through 29, 30 and 3i. The operation of the device is as follows: The tabulating cards being read (see cards 1'0 in Fig. l of 2,053,067) are passed between sensing brushes 9 and contact roll 8. Flexible plug wires H are shown wired to hubs i2 which are the input hubs for reading "re la'ys I3 through il. The circuit for reading one hole in the card is as follows: Line I; cam P-I '(2), circuit breakers 3 and 4, cam 5, card lever conta'ct 6, 'common brush l, contact roll 8, brush 9 reading through a hole in the card, plug hub I0, plug wire H, plug hubI I2, relay I3, to line 3|.

As the relay I3 becomes energized the I3A points will close `forming a holding circuit for this relay through cam-operated contacts 23 and 24, cam 25, card lever 26, to relay I3. At the same ti-ne contact points {'SB will be opened preventing a circuit to the punch magnets 30. Circuit breakers 3 and s make the circuit to pick upth relay I3 so that the points i313 will be: open before circuit breakers 23 and 24 are made.

Any positions that are not read on the card will allow the corresponding relays i3 through I'I to remain dee-nergized in which case the corresponding punch magnets will operate at lthe time circuit breakers 23 and 2li make a circuit as follows: Line I, cam 2, circuit breakers 23 and 24, cam 25, card lever contact 26, corresponding points ISB through IIB, plug hub 2l, plug wire 28, plug hub 29, punch magnets 30, and line 3|. The purpose of the points ISA through I'IA is to maintain the relays energized for the duration of operation of circuit breakers 23 and 2e. This is done because the contacts will be made for a short time after the reading circuit to the circuit breaker ycams 3 and 4 has been broken.

The purpose of cam 25 is to control the punching of the 0 to 9 holes only on the card. In cases where a card has two numerals punched in the same column, such as if 2 and '7 were read at the extreme left through brush B, the corresponding relay, which is I3. would be energized for the duration of these two numbers; at which time the contact points 13B will be opened, preventing a circuit to punch magnet 39 on the extreme left. At all other positions to 9, Contact points ISB will be normally closed, allowing a circuit to the punch magnet, thereby causing the card to be punched in the following positions 0, 1, 3, 4, 5, 6, 8, and 9.

The invention described herein may be manufactured and used by or for the Government of the United States for governmental purposes without the payment of any royalty thereon or therefor.

What is claimed is:

1. A machine for reproducing perforated records in which all blanks in a pattern card are reproduced as perforations and all perforations as blanks in the resultant record comprising means for sensing perforations in a pattern card, punching magnets energizable when a blank space is sensed, and means responsive to energization by said sensing means for selectively rendering inoperative certain ones of the punching magnets when a perforation is sensed.

2. In a machine for producing perforated records from a pattern card, means for sensing a plurality of fields of data on said pattern card, said fields of data consisting of perfcrations and blanks, a. different punching means associated with each of the fields of data energizable when a blank space is sensed, and means also responsive to the sensing means for rendering inoperative certain ones of the punching means when a perforation is sensed on the pattern card thereby reversing the sequence of said perforations and blanks on the resulting record.

3. In a machine for reproducing perforated records from a pattern card, means for sensing a plurality of elds of data on said pattern card, said fields of data `consisting of perforations and blanks, a punching magnet for each of said plurality of fields of data, the punching magnets acting to perforate the record card whenever a blank space is sensed on Ithe pattern card, a plurality of relays under control of said sensing means with a relay positioned in the circuit of each of the punching magnets, said relays being selectively energized when a perforation is sensed by said sensing means, each energized relay acting to open the circuit of the punching magnet associated therewith, thereby reversing the location of the perforations and blanks on the resulting record.

4. In a machine for reproducing records under control of pattern cards, a plurality of fingers for sensing a plurality of columns of data there being one for each column as said cards pass said sensing ngers, said columns of data comprising perforations and blanks within each column, a plurality of normally operating perforating magnets, there being a magnet associated with each column of data so that said perforating magnet is energized whenever a blank is sensed in the column, and means controlled by said sensing lingers for selectively preventing the operation of certain of said perforating magnets when perforations are sensed in the pattern card.

5. A machine for reproducing perforated records under control of a pattern card wherein all blanks in said pattern card are reproduced as perforations in the resultant record comprising a plurality of fingers for sensing perfor-ations in said pattern card, there being a sensing linger for each column on the pattern card, a plurality of relays controlled by said sensing ngers, a plu.- rality of locking circuits associated with said relays, a timing device for controlling sais" locking circuits, a plurality of normally operating perforating devices wherein each of the devices is energizable by one of the ngers when a blank is sensed in the column associated with the nger, and circuit means controlled by said relays for rendering certain ones of said perforating devices inoperative in response to operation of said relays, said relays being energized when the vfingers which control them sense a perforation in the pattern card.

ERNEST ROSE.

REFERENCES CITED The following references are of record in the iile of this patent:

UNITED STATES PATENTS Number Name Date Re.21,133 Lake June 27, 1939 1,729,028 Bryce Sept. 24, 1929 1,791,953 Bryce Feb. 10, 1931 1,976,606 Dunn Oct. 9, 1934 '2,032,805 Lake Mar. s, 1936 2,053,067 Cunningham sept. 1, 1936 2,063,475 Wellman Dec, 8, 1936 2,087,674 Nelson July 20, 1937 2,168,763 Daly Aug. 8, 1939 

